Research on Settlement Deformation and Numerical Simulation of Excavation Process Based on Asymmetric Foundation Pit
Taking an asymmetric foundation pit excavation project as an example,this study explores the influence of different factors on the settlement and deformation of the foundation during the asymmetric foundation pit excavation process.Using MIDAS GTS NX finite element software,a three-dimensional numerical model of asymmetric foundation pit excavation process was established according to the modified Mohr Coulomb model.The excavation process of asymmetric foundation pit was simulated,and the settlement deformation degree of the foundation pit under different excavation depths,distances from the pit edge,and excavation times was statistically analyzed.The simulation results show that,the degree of ground settlement increases as the excavation depth increases;the displacement value gradually decreases with the increase of depth;the degree of settlement deformation increases as the distance from the edge of the pit increases.The degree of ground settlement is the highest when the excavation depth is 4m,and then there is a trend of first increasing and then decreasing.
asymmetric foundation pitexcavation processsettlement deformationnumerical simulationmodified moore-coulomb modeldistance from pit edge
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